Malicious PDF — malware analysis report

Static analysis result for SHA-256 f215f46e8089a867…

MALICIOUS

PDF

67.7 KB Created: 2020-12-06 05:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 74019694c8b37edc60dfb25f8270501e SHA-1: 0e6d89d6c755f7a81c74c3c7b519d914f7fba3a6 SHA-256: f215f46e8089a867976fde7e0f5aa0be5bd3066625e32e82f2ff33d5385a98d0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffine.ru/123?utm_term=de+que+manera+se+divide+america'. This URL is the primary indicator of malicious intent, suggesting a phishing or malware delivery attempt. The ML classifier also strongly flagged the PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffine.ru/123?utm_term=de+que+manera+se+divide+america In PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/fekawetodobuvaw-pulovub-bekexuxovasil.pdfIn PDF document text
    • https://poxuxeket.weebly.com/uploads/1/3/3/9/133997588/7b5cf2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0e4a011f6a41984859e8d/t/5fc99c48be6684539de4802a/1607048271411/narisozapofideki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed6f915e-73f7-4fed-942c-4e2012871d25/the_slave_hunters_ending.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3676dc6d96458363207a7/t/5fcb067ea3bc3d1915275b34/1607140991580/mindustry_maps_download_mobile.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe37b89d79364840599c48/1606301627058/where_the_spirit_of_the_lord_is_there_is_liberty_nkjv.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a507085bf90c0e085fb9/t/5fc3948df81c9a2a0c104f94/1606653070257/when_did_missionaries_come_to_hawaii.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4d2a4df132613bbd6bae0/t/5fca6607a6d6102afb647804/1607099912559/metallica_sanitarium_intro_tab.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d3b00b6b03258f353712/t/5fc1586fe6d49a06bbc47c4f/1606506608680/the_science_of_nutrition_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/47686710063.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9788df23-e9ed-4e2e-a78c-297376901e07/flat_spring_design_guide.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B9 5240 bytes
SHA-256: b6b5c7a28d83a11192715d100c5c654dff0fc5a654fc717293eaf9d373290147
font_01_sfnt_off0000da74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA74 11784 bytes
SHA-256: 71330a2f21fb82cd3ec47027f822b48bcdafda50a64f3b29cb55ea8147b20f82

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